Palaeos: | ![]() |
Pteraspidomorphi |
The Vertebrates | Dendrogram |
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Abbreviated Dendrogram
Vertebrata |--Conodonta `--+--Thelodonti | Pteraspidomorphi |--Arandaspida `--Heterostracomorphi |--Astraspidae `--Heterostraci |--Cyathaspidiformes | |--Cyathaspidida | `--Amphiaspidida `--Pteraspidiformes |--Pteraspididae `--Psammosteida |--Drepanaspis `--Psammosteidae |
Overview |
Pteraspidomorphi X ToL, MH, Tax |--Anatolepis •X `--+--Arandaspida •X Tax `--Heterostracomorphi X |--Astraspidae •X Tax `--Heterostraci X ToL, Tax |--Cyathaspidiformes X MH | |--Corvaspididae X | | |--Corvaspis •X | | `--Corveolepis •X | `--+--Cyathaspidida •X Tax | `--Amphiaspidida X | |--Ctenaspis •X | `--+--Amphiaspidoidei •X | `--+--Hibernaspidoidei •X | `--Siberiaspidoidei •X `--Pteraspidiformes X MH |--Anchipteraspididae •X `--Pteraspidida X |--Protopteraspididae •X `--Pteraspidina X |--Pteraspididae •X MH `--Protaspidoidea X |--Protaspididae •X `--Psammosteida X |--Drepanaspis •X `--+--Guerichosteidae •X `--+--+--Pycnosteidae •X | `--Psammolepis •X `--Psammosteidae •X MH
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